Fan



FIG. 1 is a front perspective view of a fan showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear perspective view thereof in an alternative configuration;

FIG. 9 is an enlarged view of the rectangular region 9 of FIG. 1;

FIG. 10 is an enlarged view of the rectangular region 10 of FIG. 2;

FIG. 11 is an enlarged view of the rectangular region 11 of FIG. 3; and,

FIG. 12 is an enlarged view of the rectangular region 12 of FIG. 8.

The broken lines illustrate environmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for a fan, as shown and described. 